Concessão da patente
#16.1
05/28/1985
RPI 762
The letters patent expired on 06/13/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 05/28/1985. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS
MG, BR
Inventors
E. L. (pessoa física)
G. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
05/28/1985
RPI 762
#13.1
03/05/1985
RPI 750
#9.1
10/23/1984
RPI 731
#6.1
06/26/1984
RPI 714
#7.1
01/31/1984
RPI 693
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C21B 7/16; C04B 35/68.
03/27/2018
RPI 2464
#21.1
06/13/1995
RPI 1280
From the same holder
Same category
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